The return to Jerusalem involved restoring a vast array of precious, sacred vessels to the Temple. The inventory details the specific materials and quantities of these holy objects, painting a picture of restored glory.
The primary approach among commentators is that the initial objects listed are basins or bowls specifically designed to catch the blood of sacrifices before it was dashed against the altar [רש״י, מצודת ציון, רלב״ג, אבן עזרא, שטיינזלץ]. Their name is closely associated with the act of wiping, as the priest would wipe his fingers and any stray drops of blood on the rim of the basin [רש״י, מצודת ציון]. Alternatively, the title might reflect their ultimate spiritual purpose of bringing atonement [שטיינזלץ]. Taking a completely different view, [רב סעדיה גאון] suggests these were not bowls at all, but rather beaten, flat sheets of gold and silver. In this view, they conceptually resemble the flat cover of the Ark of the Covenant, representing objects that are wide and stretched out without any height or depth [שטיינזלץ].
When describing a specific group of silver items, commentators offer various interpretations of their nature. They might simply be vessels of secondary importance when compared to the gold ones [אבן עזרא, שטיינזלץ]. Others understand them as being paired or doubled [רש״י, רלב״ג, רב סעדיה גאון, שטיינזלץ]. This could mean they were kept as a backup inventory [שטיינזלץ], or perhaps they had a unique, practical design allowing them to be used from both sides [מצודת ציון]. Another possibility is that these objects were highly distinct from one another, varying widely in their overall shape and craftsmanship [רב סעדיה גאון].
Beyond these specific items, a thousand additional Temple vessels are included without their exact types being detailed. These might have been pure gold accessories belonging to the Menorah or the Table of the Showbread [שטיינזלץ].
Finally, there is a noticeable gap between the number of specific items listed in this inventory and the much larger total number of returning objects recorded later on. This difference exists because the detailed list only highlights the large, central vessels of the Temple. The final, larger count encompasses every single item that was brought back, combining both the large and the small [אבן עזרא].